diff options
Diffstat (limited to 'core/java/android/provider/Settings.java')
| -rwxr-xr-x | core/java/android/provider/Settings.java | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/core/java/android/provider/Settings.java b/core/java/android/provider/Settings.java index ac1998a04016..fbd6cbae47d9 100755 --- a/core/java/android/provider/Settings.java +++ b/core/java/android/provider/Settings.java @@ -9614,6 +9614,43 @@ public final class Settings { */ public static final String HDMI_CONTROL_ENABLED = "hdmi_control_enabled"; + /** + * Controls whether volume control commands via HDMI CEC are enabled. (0 = false, 1 = + * true). + * + * <p>Effects on different device types: + * <table> + * <tr><th>HDMI CEC device type</th><th>0: disabled</th><th>1: enabled</th></tr> + * <tr> + * <td>TV (type: 0)</td> + * <td>Per CEC specification.</td> + * <td>TV changes system volume. TV no longer reacts to incoming volume changes + * via {@code <User Control Pressed>}. TV no longer handles {@code <Report Audio + * Status>}.</td> + * </tr> + * <tr> + * <td>Playback device (type: 4)</td> + * <td>Device sends volume commands to TV/Audio system via {@code <User Control + * Pressed>}</td> + * <td>Device does not send volume commands via {@code <User Control Pressed>}.</td> + * </tr> + * <tr> + * <td>Audio device (type: 5)</td> + * <td>Full "System Audio Control" capabilities.</td> + * <td>Audio device no longer reacts to incoming {@code <User Control Pressed>} + * volume commands. Audio device no longer reports volume changes via {@code + * <Report Audio Status>}.</td> + * </tr> + * </table> + * + * <p> Due to the resulting behavior, usage on TV and Audio devices is discouraged. + * + * @hide + * @see android.hardware.hdmi.HdmiControlManager#setHdmiCecVolumeControlEnabled(boolean) + */ + public static final String HDMI_CONTROL_VOLUME_CONTROL_ENABLED = + "hdmi_control_volume_control_enabled"; + /** * Whether HDMI System Audio Control feature is enabled. If enabled, TV will try to turn on * system audio mode if there's a connected CEC-enabled AV Receiver. Then audio stream will |